Sunday, October22, 2017 L-36.com


Marine Weather and Tides
Kittery Point, ME

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:05AMSunset 5:49PM Sunday October 22, 2017 3:21 PM EDT (19:21 UTC) Moonrise 9:38AMMoonset 7:51PM Illumination 7% Phase: Waxing Crescent; Moon at 3 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 316 Pm Edt Sun Oct 22 2017
Tonight..SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft.
Mon..S winds 5 to 10 kt. Seas 2 to 3 ft.
Mon night..S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Tue..S winds 15 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. A chance of showers with patchy drizzle. Patchy fog. Vsby 1 to 3 nm.
Tue night..S winds 20 to 25 kt with gusts up to 35 kt. Seas 8 to 11 ft. Patchy drizzle. Showers. Patchy fog. Vsby 1 to 3 nm.
Wed..S winds 15 to 25 kt, diminishing to 10 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 9 to 12 ft. Patchy drizzle in the morning. Patchy fog in the morning. Rain. Vsby 1 to 3 nm.
Wed night..S winds 10 to 15 kt. Seas 8 to 11 ft, subsiding to 6 to 8 ft after midnight. Rain. Patchy fog. Vsby 1 to 3 nm.
Thu..S winds 10 to 15 kt. Seas 6 to 9 ft. Showers likely.
Thu night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 7 to 9 ft.
Fri..W winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft.
Fri night..SW winds 5 to 10 kt. Seas 4 to 6 ft.
ANZ100 316 Pm Edt Sun Oct 22 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure moves east into the atlantic tonight. A southerly flow will develop over the next couple of days between the departing high and a slow moving cold front approaching from the west. South winds will be the strongest Tuesday into Wednesday. The front may not cross the coastal waters until sometime Thursday. High pressure builds in for the weekend.

7 Day Forecast for Marine Location Near Kittery Point CDP, ME
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location: 43.06, -70.7     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 221910
afdgyx
area forecast discussion
national weather service gray me
310 pm edt Sun oct 22 2017

Synopsis
High pressure will hold over the maritimes tonight through Monday. A
slow moving cold front will approach from the west Monday night and
Tuesday and will slowly cross the region Wednesday through Thursday.

A shallow ridge of high pressure will build over the region on
Friday and will shift offshore on Saturday.

Near term through tonight
High pressure sliding into the maritimes has set up a bit of a
backdoor cold front across the area... With pwm at 57 this
hour... And een 82. Surface ridging still remains in control of
the region... So after dark we should see big drops in temps. Dew
points again are higher than previous days... So only an isolated
reading of upper 30s is expected in the coldest of valleys.

Otherwise mainly 40s tonight. The increased moisture should
allow for a little more ground fog... Though dense fog is a
little more uncertain. Model guidance is bullish on widespread
marine fog tonight. The tendency is for models to rush this in
on return flow... Which is just beginning to develop. However
there is a band of MVFR clouds just off the seacoast and swrn me
coast. The warm temps inland is helping to erode the leading
edge of this... So I have at least some concern that at nightfall
this may surge inland. I have trended this way in the sky
forecast... But I have not gone heavy on the fog given the
moisture is fairly shallow in nature. That will be the forecast
challenge for tonight. Otherwise valley fog is expected farther
inland from coastal influences.

Short term Monday through Monday night
Another very warm late oct day on tap for mon. With mixing to
h9... We should see widespread upper 60s to lower 70s. With
deeper mixing in sly flow this should bring some uniformity to
high temps.

Mon night deeper moisture arrives. With it I expect marine fog
and stratus to develop and move inland. With WAA ongoing above
the marine layer... Some drizzle or an isolated shower is
possible. Temps should also remain more or less steady after
sunset. Overall I think Mon night the forecast area will remain
in the WAA in the warm sector... But steady precip will hold off
until later in the day. For that reason I backed off the likely
pop that model guidance was spitting out.

Long term Tuesday through Sunday
Slow moving front will continue to inch toward the region on Tuesday.

Strong onshore flow will mainly produce areas of drizzle and
scattered showers during the day as main focus of heavier rain
remains across eastern new york and western new england. High temps
will generally range through the 60s.

Heavy rain will gradually shift into western new hampshire Tuesday
night. Strong low low level jet will combine with tropical moisture
to produce 1 to 2 inches of rain across the western half of the
state by Wednesday morning with lighter amounts in eastern new
hampshire and western maine. Lows overnight will range from the mid
50s to lower 60s.

Heavy rain will gradually shift east on Wednesday affecting most of
the forecast area through the day. Looking for additional rainfall
amounts of 1 to 2 inches in eastern new hampshire and western
maine by the end of the day. With area rivers at record low
levels for this time of year not anticipating any flooding
problems but poorly drained areas and urban street flooding
could become an issue by late in the day.

Rain will continue Wednesday night as upper trough to the west of
the forecast area GOES neg tilt slowing surface trough over central
maine and wrapping considerable moisture back to the west. This
will result in another 1 to 2 inches across much of the
forecast area overnight and may result in problems on small
rivers and streams through out the forecast area. Lows overnight
will range from the mid 40s to lower 50s.

Focus of heavy rain will gradually shift into eastern maine on
Thursday. Expect occasional showers through the day with some
minor additional accumulations possible... Mainly in eastern
zones. Highs on Thursday will range from the mid 50s to lower
60s.

Upper trough will swing northeast through the region keeping showers
in the forecast through the 1st half of Thursday night.

Downsloping winds behind departing low and a shallow ridge of
high pressure building in from the west will bring clearing to
the region after midnight. Lows overnight will dip into the mid
30s to lower 40s.

Quiet weather returns to the forecast area on Friday as high pressure
builds south of new england. Highs on Friday will range from the mid
50s north to the lower 60s south. Fair weather will extend into
Saturday as another deep trough and slow moving cold front approaches
from the west.

Aviation 19z Sunday through Friday
Short term... Tricky forecast this evening and overnight along
the coast. There is a band of MVFR CIGS in marine onshore flow
running from near psm to pwm then off shore. Model forecasts
have this becoming widespread lifr tonight. However model
guidance does tend to rush this... And guidance already suggests
this should be widespread lifr CIGS at the moment. Keeping in
mind that moisture is still relatively shallow... 30s dew points
around 1000 feet... And this is only the first night of return
flow I have not gone ifr or lower at coastal terminals. I did
however include some MVFR cigs... As some convergence along the
coast could allow this band of clouds to persist. Ct river
valley should also see fog tonight... With leb seeing lifr
conditions after 08z most likely. With E flow... Hie may remain
mixed enough to avoid fog again. Mon will return to
vfr... Followed by increasing moisture and clouds Mon night. More
widespread ifr marine fog stratus is likely... Along with
developing -ra or -dz towards morning.

Long term...

widespread ifr lifr ceilings and MVFR vsby Tuesday through
Wednesday. MVFR ifr ceilings Thursday... Improving toVFR
Thursday night.VFR Friday.

Marine
Short term... Ne flow along the coast will stay below 25 kts this
evening before weakening and turning more onshore. Then winds
and seas will remain below SCA thresholds thru mon. Mon night
increasing sly flow will start to build seas towards 5 ft
late... Leading into stronger winds tue. Will also have to watch
for some marine fog stratus tonight... But especially Mon night.

Shallow moisture should limit coverage and density... But deeper
moisture Mon night should allow for more widespread low
visibility.

Long term...

gales likely Tuesday through Tuesday night.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Sinsabaugh legro


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 7 mi96 min E 5.1 66°F 1030 hPa56°F
IOSN3 - Isle of Shoals, NH 8 mi81 min NNE 15 G 16 56°F 1029.5 hPa (-0.3)54°F
44030 - Buoy B0102 - Western Maine Shelf 17 mi77 min NE 12 G 16 57°F 58°F3 ft1030.3 hPa
WELM1 - 8419317 - Wells, ME 19 mi51 min E 11 G 14 56°F 53°F1030.3 hPa
WEXM1 - Wells Reserve, ME 21 mi81 min NNE 7 59°F 54°F
44098 - Jeffrey's Ledge, NH (160) 34 mi45 min 59°F2 ft
44029 - Buoy A0102 - Mass. Bay/Stellwagen 38 mi77 min NNE 9.7 G 12 59°F 59°F1 ft1028.4 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 44 mi91 min ENE 16 G 19 55°F 55°F3 ft1029.9 hPa (-0.5)51°F
CASM1 - 8418150 - Portland, ME 48 mi51 min 56°F 55°F1030.6 hPa
44013 - BOSTON 16 NM East of Boston, MA 49 mi91 min NNE 9.7 G 12 59°F 60°F1 ft1028.8 hPa (-0.5)

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH7 mi85 minNE 810.00 miMostly Cloudy63°F53°F72%1029.7 hPa
Rochester - Skyhaven Airport, NH19 mi30 minE 610.00 miFair62°F52°F70%1029.3 hPa
Sanford, Sanford Regional Airport, ME23 mi25 minENE 710.00 miFair61°F53°F75%1030.6 hPa

Wind History from PSM (wind in knots)
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Last 24hrSW8W5CalmS3S3SW3SW3CalmCalmCalmNW3NW3W4W3CalmCalmCalmCalmCalmE5NE5NE7NE8NE8
1 day agoW11
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W4W9W7W7W6NW6W4W3CalmW4W5W4W5CalmCalmW6W5W6W6SW8SW7
2 days agoSW13SW12
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G18
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G22

Tide / Current Tables for Gerrish Island, Portsmouth Harbor, New Hampshire
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Gerrish Island
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Sun -- 01:16 AM EDT     8.96 feet High Tide
Sun -- 07:05 AM EDT     Sunrise
Sun -- 07:13 AM EDT     0.56 feet Low Tide
Sun -- 09:37 AM EDT     Moonrise
Sun -- 01:23 PM EDT     9.41 feet High Tide
Sun -- 05:48 PM EDT     Sunset
Sun -- 07:42 PM EDT     0.01 feet Low Tide
Sun -- 07:51 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.18.98.77.45.33.11.40.60.92.24.36.68.49.39.28.16.13.61.50.30.10.92.64.9

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Sun -- 02:57 AM EDT     -0.00 knots Slack
Sun -- 05:34 AM EDT     -1.81 knots Max Ebb
Sun -- 07:05 AM EDT     Sunrise
Sun -- 09:23 AM EDT     0.00 knots Slack
Sun -- 09:37 AM EDT     Moonrise
Sun -- 11:22 AM EDT     1.29 knots Max Flood
Sun -- 03:13 PM EDT     -0.00 knots Slack
Sun -- 05:48 PM EDT     Sunset
Sun -- 05:58 PM EDT     -1.97 knots Max Ebb
Sun -- 07:51 PM EDT     Moonset
Sun -- 09:58 PM EDT     0.00 knots Slack
Sun -- 11:48 PM EDT     1.10 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.80.6-0-1-1.7-1.8-1.5-1.1-0.40.61.21.20.90.70.2-0.8-1.7-2-1.8-1.5-0.900.9

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Gray/Portland, ME (15,3,4,5)
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Ground Weather Radar Station Portland, ME
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.